Effect of temperature on the flexural and ILSS behaviour of symmetric and asymmetric basalt fibre-reinforced polymer composites

• Published in: Materials today : proceedings 2023-03
• Main Authors: Kumar, Santosh, Sharma, Nisha, Biswas, Rahul, Singh, Kalyan Kumar
• Format: Article
• Language: English
• Subjects: Basalt fibre reinforced composite; Fibre orientation; Flexural properties; Interlaminate shear strength; Temperature effect
• ISSN: 2214-7853; 2214-7853
• DOI: 10.1016/j.matpr.2023.03.327

The purpose of this research is to examine the effects of stacking sequence and thermal conditioning temperature on the flexural strength and interlaminar shear strength behaviour of basalt fibre-reinforced laminates according to the ASTM D790-10 and ASTM D2344 respectively. A hand-lay-up technique is used to fabricate the laminates. Three different stacking sequences and three thermal conditioning temperatures were chosen for basalt fibre-reinforced laminates. A closed furnace was used for thermal conditioning of laminates at room temperature, 50˚C and 80˚C for 2 hrs. The flexure strength and ILSS behaviour of BFRP laminates are found to be significantly affected by both the stacking sequence and the thermal conditioning temperature. In order to investigate the damage that had occurred on the fractured laminate specimen surface, an optical microscope was used. It was found, that the stiffening of the resin matrix causes the tested composite to be more resistant and less deformable at room temperature. This effect may be attributed to the composite's increased strength.